21402766

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2957}}^1$

素因数の和:3024

約数の個数: 32

約数和(自身を含む): 40891392

約数和(自身を除く): 19488626

約数列:

[1, 2, 7, 11, 14, 22, 47, 77, 94, 154, 329, 517, 658, 1034, 2957, 3619, 5914, 7238, 20699, 32527, 41398, 65054, 138979, 227689, 277958, 455378, 972853, 1528769, 1945706, 3057538, 10701383, 21402766]

約数ペア:

[(1, 21402766), (2, 10701383), (7, 3057538), (11, 1945706), (14, 1528769), (22, 972853), (47, 455378), (77, 277958), (94, 227689), (154, 138979), (329, 65054), (517, 41398), (658, 32527), (1034, 20699), (2957, 7238), (3619, 5914)]